Home / 80,514.38-120,744.24-30,582.44

Finding the Fourth Proportional to 80,514.38, 120,744.24 and 30,582.44

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Solution

The fourth proportional to 80,514.38, 120,744.24 and 30,582.44 is: 45,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,514.38 : 120,744.24 = 30,582.44 : x
  2. Step 2: Convert to fraction form
    80,514.38/120,744.24 = 30,582.44/x
  3. Step 3: Cross multiply
    80,514.38x = 120,744.24 × 30,582.44
  4. Step 4: Simplify right side
    80,514.38x = 3,692,653,475.15
  5. Step 5: Solve for x
    x = 3,692,653,475.15/80,514.38
  6. Step 6: Final answer
    x = 45,863.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.